IoT Based Smart Electricity Energy Meter

 Circuit Diagram :-

Code :-

//Prateek //wwww.prateeks.in //https://www.youtube.com/c/JustDoElectronics/videos #include <LiquidCrystal_I2C.h> LiquidCrystal_I2C lcd(0x27, 16, 2); #define BLYNK_PRINT Serial #include "EmonLib.h" #include <WiFi.h> #include <WiFiClient.h> #include <BlynkSimpleEsp32.h> EnergyMonitor emon; #define vCalibration 83.3 #define currCalibration 0.50 BlynkTimer timer; char auth[] = "xxxxxxxxxxxxxxxxxxxxxxxxxxx"; char ssid[] = "justdoelectronics"; char pass[] = "pra12345"; float kWh = 0; unsigned long lastmillis = millis(); void myTimerEvent() { emon.calcVI(20, 2000); kWh = kWh + emon.apparentPower * (millis() - lastmillis) / 3600000000.0; yield(); Serial.print("Vrms: "); Serial.print(emon.Vrms, 2); Serial.print("V"); Serial.print("\tIrms: "); Serial.print(emon.Irms, 4); Serial.print("A"); Serial.print("\tPower: "); Serial.print(emon.apparentPower, 4); Serial.print("W"); Serial.print("\tkWh: "); Serial.print(kWh, 5); Serial.println("kWh"); lcd.clear(); lcd.setCursor(0, 0); lcd.print("Vrms:"); lcd.print(emon.Vrms, 2); lcd.print("V"); lcd.setCursor(0, 1); lcd.print("Irms:"); lcd.print(emon.Irms, 4); lcd.print("A"); delay(2500); lcd.clear(); lcd.setCursor(0, 0); lcd.print("Power:"); lcd.print(emon.apparentPower, 4); lcd.print("W"); lcd.setCursor(0, 1); lcd.print("kWh:"); lcd.print(kWh, 4); lcd.print("W"); delay(2500); lastmillis = millis(); Blynk.virtualWrite(V0, emon.Vrms); Blynk.virtualWrite(V1, emon.Irms); Blynk.virtualWrite(V2, emon.apparentPower); Blynk.virtualWrite(V3, kWh); } void setup() { Serial.begin(9600); Blynk.begin(auth, ssid, pass); lcd.init(); lcd.backlight(); emon.voltage(35, vCalibration, 1.7); emon.current(34, currCalibration); timer.setInterval(5000L, myTimerEvent); lcd.setCursor(3, 0); lcd.print("IoT Energy"); lcd.setCursor(5, 1); lcd.print("Meter"); delay(3000); lcd.clear(); } void loop() { Blynk.run(); timer.run(); }


Just Scan In Your Blynk App

Photos